RFR: 8268475: execute runtime/InvocationTests w/ -UseVtableBasedCHA

[Igor Ignatyev]

Hi all,

could you please review this small test-only patch?
from JBS:
> execution of runtime/InvocationTests w/ -XX:-UseVtableBasedCHA can be instrumental in finding bugs in the old implementation of CHA.

the patch adds a new test `invocationOldCHATests.java` which is based on `invocationC1Tests.java` but runs the tests w/ `-Xcomp -XX:+UnlockDiagnosticVMOptions -XX:-UseVtableBasedCHA`.

testing: `invocationOldCHATests.java` on `{linux,windows,macosx}-x64`

Thanks,
-- Igor

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Commit messages:
 - 8268475

Changes: https://git.openjdk.java.net/jdk/pull/4438/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4438&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8268475
  Stats: 7 lines in 1 file changed: 0 ins; 1 del; 6 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4438.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4438/head:pull/4438

PR: https://git.openjdk.java.net/jdk/pull/4438